Aerospace Science and Technology
The Success of the Hybrid Genetic and Particle Swarm Algorithm for a Return Spacecraft from the Atmosphere with an Optimal Trajectory Design Approach to Reduce Aerodynamic Heat Transfer

Alireza Ekrami Kivaj; Alireza Novinzadeh; farshad pazooki; Ali Mahmoodi

Volume 16, Issue 2 , October 2023, , Pages 17-32

https://doi.org/10.22034/jast.2023.375858.1138

Abstract
  This study aims to investigate the spacecraft returning from the atmosphere. Due to high speed, prolonged flight duration, and numerical sensitivity, returning from the atmosphere is regarded as one of the more challenging tasks in route design. Our suborbital system is subjected to a substantial thermal ...  Read More

Aerospace Science and Technology
Three-Axis Satellite Attitude Control with Fractional-Order PID Controller in the presence of Uncertainty and Disturbance

Amir reza Kosari; Elahe Khatoonabadi; Vahid Bohlouri

Volume 15, Issue 2 , October 2022, , Pages 84-95

https://doi.org/10.22034/jast.2022.321251.1109

Abstract
  In this paper, the control of a three-axis rigid satellite attitude control system with a fractional order proportional-integral-derivative (PID) controller is investigated in the presence of disturbance and parametric uncertainties. The reaction wheel actuator with the first-order dynamic model is used ...  Read More